Conditions & Procedures
All of the routine eye examination procedures are carried out, including external and internal eye examination, refraction, glaucoma screening, visual fields, colour vision and binocular vision balance. However, the practice is mainly a contact lens specialist practice with a special focus on advanced contact lens design and fitting for Keratoconus, Post Corneal graft, Orthokeratology and ocular surface disease. We also have all the treatment modalities for Dry Eye and the most up to date equipment for special tests, Ocular Coherence Tomography and Optos retinal scanning.
What is Keratoconus?
Keratoconus is an inherited condition known as dystrophy, that usually first becomes apparent between the ages of 10 and 25 years. It is a recessive condition requiring genetic factors from both parents, so the chance of it occurring in your children is extremely slight. However, if you have the condition it is imperative that your children be checked regularly from the age of 8 years. The incidence is about 1 in 8,000 generally, but in some groups (South sea Islanders for example) the incidence can reach 1 in 2,000. Keratoconus is sometimes, but not always, associated with conditions such as allergies, infantile eczema and asthma, reduced night vision and a maternal age over 28. On the credit side, some 60% of people with keratoconus go on to tertiary education compared with 12% of the population as a whole. Keratoconus does not cause blindness but, if untreated, it can lead to a significant loss of vision.
What is Keratoconus?
Orthokeratology is the use of contact lenses to change the shape of the cornea (the front surface of the eye) to correct or reduce errors in focusing caused by myopia (short sightedness) or astigmatism (irregular shape of the cornea). Special oxygen-permeable contact lenses are worn overnight to change the shape of the cornea to give clear vision without glasses or contact lenses during waking hours.
Ortho-K has been practiced for more than forty years, however its recent success is due to advances in computerized corneal mapping and improved contact lens technology. It requires a high level of expertise in contact lens fitting and sophisticated computerized equipment.